To put it another way: You are upset that they are misinterpreting what you say because of your tone. Instead, you could recognize that you are speaking their language incorrectly. That tone seems important to other speakers of the language and not to you is not a problem with their understanding of the language.
To put it another way: You are upset that they are misinterpreting what you say because of your tone. Instead, you could recognize that you are speaking their language incorrectly. That tone seems important to other speakers of the language and not to you is not a problem with their understanding of the language.